Fire-tube cleaner



.L DWIRGUO.

FIRE TUBE CLEANER.

APPLICATION men JAN.15,1921.

Patented July 5 ,1921.

' of tool or head one end of the and extending out irom the other end UNITED STATES RAT m OFFICE.

IGN'AZIO mvmemo, or Pm'oumr, mmvsynvmn v June-run amen.

To all whom it may concem:

Be it known that I, IGNAZIO Dlvnioxlio, a citizen of the United States of America,

and a resident of Pitcairn, county of Allegheny,"and State of Pennsylvania, have invented certain new in Fire-Tube Cleaners, of which the following is a full and clear specification.

This invention relates to fire-tube cleaners of that class wherein a small turbine, on. the end of the pipe which conducts the motive fluid, is inserted in and forth therein, the! driven shaft of the turbine being provided with a tool which upon rotation of the pipe knocks and scrapes oil the inorustation; and the special ob ect of the present invention is to provide a form which will be especially effective in dislodging the accumulated matter and which will not get stuck in the tube, as more fully hereinafter set forth.

' in the drawing-- Figure l is a side elevation, partly in section, of a well-known form of turbine tube cleaner provided with my device;

Fig. 2 is at side elevation with my tool or head detached Fig. 3 is an end view looking at the inner end of the tool.

in the drawing,- 5 designates the turbine,

which may be a steam turbine or air onwatcr driven, and which may be of any suit able ty ic'udapted to enter the fire-tube to be clcuneii. The motive fluid is conducted into turbine by means of a pipe 6, oi the turbine is the driwnhhui't 7 thereof.' Aflixed to the projecting end of the drivenshaft is one member 8 of a universal coupling, the other member 9 of this coupling bcing providml with reception of the threaded shank of the tool or head, the shank being screwed into the coupling 9 far enough to bring the inner end Specification of Letters l'ateut.

and useful Improvements.

the pipe and moved back :1. threaded hole for the shape. These intersecting grooves .form' a mu mm 13 which hull}; of the tool and also'circumferentially. VV it a tool of this type, es ecially when as in the present cal-unit is universal joint, ,the incrustation 'is quickly disintegrated, and stickin hlcuvy deposit of products t ac tool toward its forward end.

The nature having been thus indicated and its preferred embodiment having been specifically described, what is claimed as new is: l

A tube cleaner comprising a head formed solid throughout its diameter and length and tapered toward its front-end and at its rear or large end with a device adapting it to be engaged with one member of-a universal coupling, the surface of said head being grooved both longitudinally and annularly to form a multi dial projections whic 1 arearranged in alinemcnt both circumferentially and longitudinully of the tool. i

In testimon y whereof I hereunto afiix my relation with the of combustion in signature.

of the tool in a llcity of pyramidal ra- Patented July 5, 1921. Application Mei! January 15, 1921. Serial m. 43mm.

The

city of pyramidal radial projections are arranged in rows lorigitudiriven throng a and scope of the invention provided G5 tube is entirely avoided by tapering the y 

